Fig. 4.

Generalized pattern of stolon branching in U. dichotoma. On the upper sector of the runner stolon (R; green = upper/adaxial sector, blue = lower/abaxial sector), after the development of a first foliage leaf (L) and two bladders (b), organs grow from the base of the leaf in a rosette (r). a(s)/x = develops into an anchor stolon (a) which may turn into a simple stolon (s) or develops (less often) into another organ type (x) such as a bladder, a leaf, or a runner stolon at the same insertion. Primordia (p; organ rank 6 or higher) develop into a, s, b, L, or R. I = inflorescence (red)